There are 5 other file types using
the ATR file extension!

atr file icon.atr - Atari 8-bit disk image

atr file icon.atr - MicroSim PCBoard attributes report

atr file icon.atr - Stanford Microarray Database array tree file

atr file icon.atr - ZX Spectrum attributes

atr file icon.atr - PhysioBank annotation

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ATR file extension - Autodesk Lightscape material data

What is atr file? How to open atr files?

File type specification:

3d graphics, CAD-CAM-CAE file type icon 3d graphics, CAD-CAM-CAE file type

The atr file extension is associated with the Lightscape, a visualization software for Microsoft Windows operating system, developed by Autodesk.

The atr file contains material data used by Lightscape program.

This atr file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Help how to open ATR files:

Use Autodesk Lightscape to open *.atr files.

How to convert file with extension ATR:

As far as we know, this .atr file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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